Frequently asked questions (FAQ’s)

We get asked a lot of questions on our home energy efficiency solutions; please see below for some of the most common. Anything else you may be unsure of us, just call 1890 315315 or email our team on info@cosihomes.ie.

Because we use the latest system on the market, the holes we require to drill are 10mm diameter and these can be drilled in the mortar joints between the brickwork on your house and filled afterwards so they are not noticeable.

Extensive tests have shown that our Graphite Silver Bead cavity wall insulation does not allow water to pass across the cavity. Before installing the insulation, the empty wall cavities are inspected for obstructions with a special tool called a boroscope. Any obstructions are noted and cleared by the installers before the insulation is injected.

The purpose of the cavity is to prevent rain that soaks into the outside brickwork from crossing to the inside of the wall. The cavity interrupts any water that soaks through the brickwork and drains it to the bottom of the wall where it drains to the outside. Injecting mineral wool insulation into the cavity still allows water to drain to the bottom of the wall. Our Graphite Silver Bead cavity wall insulation contains a water repellent and so does not absorb water. Extensive tests have shown that Knauf Supafil cavity wall insulation does not cause water to pass across the cavity.

Yes, your house can still be insulated. The installer will need to form a hole at the top and bottom of the wall to insert a spacer at the junction between the two houses. This prevents insulation being blown into the cavity of your neighbour’s house.

Most of the controls do not require any client input. For the ones that do we only use the most modern, simplest controls agreed with the client. We always make sure the client is familiar with the controls before we leave the house, and remember we are only a phone call away!

Extensive tests have shown that our Graphite Silver Bead cavity wall insulation does not allow water to pass across the cavity. Before installing the insulation, the empty wall cavities are inspected for obstructions with a special tool called a boroscope. Any obstructions are noted and cleared by the installers before the insulation is injected.

No. There is a requirement that you apply for at least €400 of a grant and this means that you will have to carry out at least one other measure to be able to avail of the Grant.

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SAVE UP TO

€700 A YEAR

With External

Insulation

The best way

to balance

indoor air quality

and energy savings

Demand Controlled Ventilation

Save up to

30%

on your

fuel bills!

With Cavity & Attic Insulation

Testimonials

Very pleased with the way in which the work was carried out and the end result. We have noticed a big difference this winter.
Thanks a lot

Kevin Downes – Co Dublin

We were very impressed with all your team and their total commitment to their tasks; foreman, plasterers and electrician. Our houses is less draughty and we don’t seem to have the heating on as much as before.

Terence Hudson – Malahide

Very efficient and well organised, all works were completed as per schedule very high quality finish.
Well done

Carl Platt – Dublin 14

Our house is very big I thought it would have taken a lot longer to complete but they were finished the external insulation and plastering in two week just like the sales man had said. It is so much warmer now we have already begun to use less oil. Thanks to all concerned.

Joanne McKenna – Drogheda Co. Louth

Many thanks to all at CosiHomes. It was a big job to take on and we were a bit nervous, however everything ran so smoothly. We are really really pleased.

Lisa Hawkins – Delgany

Our commitment to quality

At CosiHomes, we are working tirelessly towards a sustainable Ireland and as members of the Enprova Better Energy Programme; we are committed to reducing Ireland’s energy usage.
We are an SEAI (Sustainable Energy Authority of Ireland) registered contractor and all our products and systems are approved and audited by NSAI.
We have also been awarded ISO 9001 for quality management systems, ISO 14001 for environmental management and ISO 18001 for healthy and safety management.